18979578

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{14851}}^1$

素因数の和:14930

約数の個数: 24

約数和(自身を含む): 41704416

約数和(自身を除く): 22724838

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 14851, 29702, 44553, 89106, 133659, 267318, 1054421, 2108842, 3163263, 6326526, 9489789, 18979578]

約数ペア:

[(1, 18979578), (2, 9489789), (3, 6326526), (6, 3163263), (9, 2108842), (18, 1054421), (71, 267318), (142, 133659), (213, 89106), (426, 44553), (639, 29702), (1278, 14851)]